The answer would be 17.
You get 17.
17
find 75% of 10 and 75%of 8 then add them together
To calculate the atomic mass of an element, you multiply the mass of each isotope by its relative abundance, then add the results together.
You add together the values and divide by the number of values.
To calculate the percent Calcium Nitrate, you can add the percentage of Calcium and Nitrate together. For example, if you have 15% Calcium and 10% Nitrate, the percent Calcium Nitrate would be 25%. This assumes that the percentages are based on the weight of the compound.
Add the three together and divide by three.
Add the total of the percentages toegether then divide it by the number of results.
Add together its 4 sides
To calculate a 3% raise, you need to multiply your current salary by .03. The amount you come up with will give you your raise. You can add these amounts together and get your total salary. Or multiply by 1.03 and save a step.
To calculate the energy available from a food, multiply the number of grams of carbohydrate, protein, and fat by 4,4, and 9, respectively. Then add the results together and that should be your answer.
12 percent plus 20 percent equals 32 percent. To add one percentage to another simply add the numbers together and keep the percentage sign.